Hi,
To access data on a per channel basis you need to index into the data array. For example, to look at the second channel's data you would do the following:
s = daq.createSession('ni')
s.addDigitalChannel('dev2', 'port0/line0:3', 'InputOnly')
s.addDigitalChannel('dev2', 'port0/line4:7', 'OutputOnly')
myOutputData = [0 0 0 0];
myInputData = s.inputSingleScan;
if myInputData(2) == 1
myOutputData = [1 1 1 1];
end
s.outputSingleScan(myOutputData);
Similarly, if you want to change only one output line based on the result from an input line, you can do the following:
if myInputData(1) == 1
myOutputData(3) = 0;
end
s.outputSingleScan(myOutputData)
- Wael Hemdan
